Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM

Help Request

Answers

1992 Chevrolet Corvette 5.7L No Start, StallVIN: 1G1YY23P5NHello everyone on iatn. I had this corvette towed in to me
a couple of days ago and it was a no start. I had no spark
and had no refrence low 8x signal coming out of the opti
spark so I replaced the distributor with a reman unit.
after that it would start but ...

2000 Chevrolet Impala LS 3.8L No Start, StallVIN: 2G1WH55K2YVehicle presented as a cranks ok, no-start. Acts like it's
in anti-theft mode, "Security" message displays until start
attempt, then goes out (normal operation). Will run for
about a second on initial start attempt, then stall out and
only crank until the key ...

2012 Chevrolet Sonic LTZ 1.8L HVAC Blower FanVIN: 1G1JE6SH8CCustomer has to put on 40 to 60 miles before it acts up.
Blower fan is inoperative regardless on speed position. She
says it seems to act up more the colder it is outside, like
below 0. When it acts up, she waits approximately 5
minutes, while still driving an...

2005 GMC Yukon XL 1500 SLE 5.3L Cooling FansVIN: 1GKFK16T25Now the cooling fans run all the time when the engine is
running, they are on high speed, no codes. I suspect it is
to do with the A/C high pressure switch, reads 3.3v
running, jump red to gray reads 5v. Black wire shows no
continuity to ground, I see it goes ...

2009 GMC Sierra 2500 HD WT 6.6L MechanicalVIN: 1GTHK49689truck came in the shop running very rough and smoke out of
the exhaust raw fuel it had misfire on cylinder 5 cancel
the out injectors the only one that made a difference was
cylinder number 5 to make a long story short phone date
then push rod on the exhaust s...

2000 Chevrolet C2500 5.7L No StartVIN: 1GCGC29R5YThanks for all the helpful replies, got back to this one late and as many of you suggested the coil just poop out. New coil puts out 40-50+ kv on start up and now has the blue spark (wow) These techs got it William [...], ...

2002 Chevrolet S10 LS 4.3L tcc solenidsVIN: 1GCDT13W52 My problem got resolved by replacing the TCC,PWM and pressure control solenoids. But when doing so I did not noticed that 3 of the pins from 20 pin connector at the transmission had slightly come off/broke from it and caused a different code. I crossed t
2 o...

2007 Chevrolet Silverado 1500 Classic LS 4.3L No Start, no crankVIN: 1GCEC19X17After a lot of waiting for the issue to present itself again, the vehicle finally wouldn't start again. I had a Fluke 97 lab scope hooked up to both high speed data communication lines. The HS+ showed virtually no signal with a few negative spikes. I had a fel...